Need help concatenating data with struct field name?

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flemingtb 2018-11-5

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回答： flemingtb 2018-11-5

I have a struct (s) with Field (name) i'm looking to create a 'name' array so that i can concatenate it with data. the field 'name' is file names and the data is range values calculated from each file.

How can i place the files names in column (1) and the range values that go with each name in column (2)?

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Stephen23 2018-11-5

编辑：Stephen23 2018-11-5

What have you tried so far?

Stephen23 2018-11-5

flemingtb's "Answer" moved here:

I know the field names for the struct. I tried

F = theFiles.name

that only gives me the name of the first filename in the column.

I also tried

F = ([theFiles.name])

Which is closer, it lists all of the file names but they are not indexed, they are displayed like a huge string.

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Answer 1

Stephen23 2018-11-5

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/428064-need-help-concatenating-data-with-struct-field-name#answer_345292

编辑：Stephen23 2018-11-5

在 MATLAB Online 中打开

Create a cell array from the structure field:

names = {s.name}

This syntax uses a comma-separated list:

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists

Once you read them you will understand that my answer is equivalent to this:

C = {s(1).name, s(2).name, s(3).name,..., s(end).name}

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flemingtb 2018-11-5

that worked great for getting the file names into a cell array. Now i have two options, i need to combine this cell array with the data. The data is a 45x1 double, the file names are 45x1 cell, they are not playing nice with each other.

Is it a data format issue?

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